Stump-puller



(No Model.) f

' N.'P. MERCHANT.

D v Stump Puller.

No. 236,829. P-atented Jan. 18,1881.

Wmnssns; ,INVENTOR: \N 72 f/izamfl BY m t r I I ATTORNEYS.

UNITED STATES PATENT OFFICE.

NEWTON P. MERCHANT, OF BLAINE, MICHIGAN.

STUMP-PULLER.

SFECIFICATION forming part of Letters Patent No. 236,829, dated January 18, 1881.

Application filedseptember 30, 1880. (No model.)

To all whom it may concern Be it known that 1, NEWTON PRESTON MERCHANT, of Blaine, in the county of St. Clair and State of Michigan, have invented a new and useful Improvement in Stump-Pullers, of which the following is a specification.

Figure l is arear elevation of the improvement. Fig. 2 is a side elevation. Fig. 3 is a sectional elevation of the larger chain-wheel, enlarged. Fig. 4 is a sectional elevation of the smaller chain-wheel, enlarged. Fig. 5 is a side elevation of the smaller gear-wheel, enlarged; Fig. 6 is a perspective view of the chain-clamp, enlarged. Fig. 7 is an enlarged detail view, showing the clamp placed on the chain next to the smaller chain-wheel; and Fig. 8 is an enlarged detail View, showing the clutch-teeth on the hub of the large or rope wheel, and also like teeth of the small gearwheel. Fig. 9 is an enlarged detail view, showing the chain-pulleys and their clutchconnection with the large gear-wheel.

Similar letters of reference indicate corresponding parts. 7

The object of this invention is to furnish stump-pullers so constructed that they can be readily adjusted to operate with a quicker movement and with less power for pulling small stumps and snags, and a slower movement and greater power for pulling large stumps,,and which shall be simple in construc-' tion, convenient in use, and easily moved from place to place.

The invention relates to certain improvements in that class of stump-pullers having inclined posts connected at their upper ends, a suspendedframe for supporting the operatin g mechanism, and wheels and a pivoted shoe to adapt the puller to be readily moved from place to place; and it consists in a suspended frame provided with a horizontal upper shaft, upon which is arranged a large or loose ropepulley and a small gear-wheel, engaging one with the other by clutch-teeth, and a lower shaft having unequal chain-Wheels provided withclutch teeth which engage with like teeth on the hub of a large gearwheel meshing with the small gear-wheel on the upper shaft; also, in a peculiar chain-clamp, a traveler, and the combination of parts hereinafter fully set forth.

A represents three posts or beams, which are inclined toward each other, and are connected at their upper ends by a bolt or other suitable means. The posts A are secured in proper relative position by braces B, attached to their upper parts, so as to leave their lower parts free.

To the lower ends of the two rear posts, A, are pi oted small wheels 0, and to the lower end of the forward post, A, is pivoted a shoe. D, to which'the team is attached for moving and adjusting the machine. When the machine is to be moved from place to place the shoe D can be replaced by a small wheel or truck.

From the upper ends of the posts A is suspended a strong iron frame or clevis, E, to the ,upper parts of the side bars or arms of which is pivoted a shaft, F.

To the middle part of the shaft F is attached a small gear-wheel, G, upon one end of the hub of which are formed notches or clutchteeth, to engage with corresponding notches 0r clutch-teeth in the end of the hub of the pulley H, placed upon the said shaft F, and held against the gear-wheel G by a spring, I, attached to the frame E, and resting against the outer end of the hub of the pulley H. The pulley H is designed to receive the draft rope or chain J, which makes one or more turns around the said pulley, to prevent the said rope or chain from slipping. One end of the rope or chain J passes around a guide-pulley, K, pivoted to one of the posts A, and to it is attached the team. The other end of the rope or chain J is designed to be wound upon a Windlass pivoted to the posts A, for convenience in winding up the draw-rope J after it has been drawn out by the team. The windlass is not shown in the drawings. Or the draw-rope J can be drawn back by an endless rope or chain passing around a pulley attached to the pulley H or the shaft F.

The teeth of the small gear-wheel G mesh into the teeth of a large gear-wheel, L, attached to a shaft, M, pivoted to the ends of the side bars or arms of the frame or clevis E.

Upon the shaft M, at the opposite sides of the large gear-wheel L, are placed chainwheels N O, the inner ends of the hubs of which have notches or clutch-teeth formed upon them, to engage with corresponding notches or clutch-teeth formed upon the ends of the hub of the large gear-wheel L, so that the chain-wheels N 0 will be carried around by and with the gear-wheel L in its revolution. The chain-wheel N is made so much larger than the chain-wheel 0 as to receive about two more links of the pulling-chain than the said chain-wheel 0. The chain-wheel O is held in gear with the gear-wheel L by the side bar or arm of the frame or clevis E, or by a washer interposed between the said chainwheel and bar or arm, so that the said chainwheel can be detached, when worn, and replaced by a new one.

The larger chain-wheel N is held in gear with the gear-wheel L by a spring, I", attached to the bar or arm of the frame or clevis E, and resting against the hub of the said chain- Wheel N, or in a groove in the said hub, so that the chain-wheel N can be thrown out of gear, when desired, to allow the pulling-chain to be run back for another hitch without turning the entire mechanism. The chain-wheel N can be thrown out of gear, when desired, by means of a forked iron or lever or other suitable means.

QQ is an endless chain, which is passed over one of the chain-wheels N O, is looped around the lower side of the gear-wheel L in unequal loops, and is passed over the other chainwheel in the opposite direction from the first one, so that the said chain will pass in opposite directions over the chain-wheels while the said chain-wheels are revolving in the same direction.

Upon the longer loop of the pulling-chain Q is placed a pulley, R, which carries a double hook or cross-head, S, to receive the chain T, attached to the stump to be pulled. With this construction, when the draw-rope J is drawn down outward, the arm of the longer loop of the pulling-chain Q, that passes over the larger chain-wheel N, will be drawn upward,and the arm of the said loop that passes over the smaller chain-wheel 0 will be drawn downward, the loop being shortened and the pulley R and the stump attached to it being raised at each revolution of the chain-wheels N O for a distance equal to the difference in length of the circumferences of the said chain-wheels N O. The endless chain Q is kept from slipping upon the chain-wheels N 0 by two travelers, U, one to each chain-wheel, which are pivoted to supports attached to the frame E, and which rest and lit upon the said chain as it is passing over the said chain-wheels-i. 0.. the travelers U, by resting upon the chain Q as it passes over the chain-wheels, prevent the chain from rising upon the spurs of the said chain-wheels, and thus obviate or assist in preventing the chains from slipping. In other words, the travelers serve as weights to hold the chain down in place on the wheels N 0 while the machine is in the act of pulling a stump.

When less power is required, and it is desired that the machine should operate with increased speed, a clamp, V, is attached to the chain Q upon the side of the pulley R next the smaller chain-wheel O, which, as the machine is operated, strikes the pulley R and stops the movement of the said pulley upon the chain Q, so that the pulley Rand the stump attached to it will be raised at each revolution of the chain-wheel N for a distance equal to the circumference of the said chain-wheel N. The clamp V may he formed of two small bars of such a size as to fit upon and clamp a link of the chain Q, hinged to each other at one end, and secured to each other at the other end, when closed upon a link, byaspringcatch; or any other suitably-constructed clamp may be used.

W is a stirrup or U-shaped bar, the ends of which are pivoted to the side bars of the frame E, so that the said stirrup W can be turned down to engage with the teeth of the gear wheel L and prevent the stump from sinking back when the draft is Blackened to allow the draw-rope J to be drawn back for another pull.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. An improved stump-puller constructed substantially as herein shown and described, consisting of the three posts A, connected at their upper ends, the suspended frame E, the gear-wheel, shaft, and pulley, GFH, the drawrope and pulley J K, the gear-wheel, shaft, and unequal chain-wheels, L M N 0, and the looped endless chain Q, as set forth.

2. In a stumppuller, the combination, with the inclined posts A, connected at their upper ends, and the suspended frame E, of the shaft F, the small gear-wheel G, having clutch-teeth, the loose pulley H, having clutch-teeth, and held against the gear-wheel G by a spring, I, the shaft M, the large gear-wheel L, having clutch-teeth, the two unequal chain-wheels N 0, having clutch-teeth, the spring P, the looped endless chain Q, the pulley R, carrying double hook S, to receive the connecting-chain, and the draw-rope J and guide-pulley K, substantially as herein shown and described, whereby the puller is made to operate with great power, as set forth.

3. In a stump-puller, the combination, with the looped endless chain Q, passing over the chain-wheels N 0 in opposite directions, and the pulley R, with which the stump to be drawn is connected, of a clamp, V, substantially as herein shown and described, whereby the puller is made to operate with increased speed when less power is required, as set forth.

4. In a stump-puller, the combination, with the looped endless chain Q and the chainwheels N O, of travelers U, substantially as herein shown and described, whereby the chain is prevented from slipping, as set forth.

NEWTON PRESTGN MERCHANT.

Witnesses:

E. F. Rosa, A. H. Rose.

IIO 

